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Absorption Efficiency and Physical Bounds on Antennas

Publiceringsår: 2010
Språk: Engelska
Sidor: 1-7
Publikation/Tidskrift/Serie: International Journal of Antennas and Propagation
Volym: 2010
Nummer: Article ID 946746
Dokumenttyp: Artikel
Förlag: Hindawi Publishing Corporation


Abstract—The all spectrum absorption efficiency appears in
the physical bounds on antennas expressed in the polarizability
dyadics. Here, it is shown that this generalized absorption
efficiency is close to 1/2 for small idealized dipole antennas and
for antennas with a dominant resonance in their absorption. Also,
the usefulness of this parameter is analyzed for estimation of
antenna performance. The results are illustrated with numerical
data for several antennas.



  • Technology and Engineering
  • sum rule
  • absorption efficiency
  • Physical bounds
  • polarizability


  • Electromagnetic theory
  • ISSN: 1687-5869

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